Periodic rain this evening should end around midnight or so. Lows in the mid to upper 50s. Light east wind.

Saturday morning clouds break up, leaving us partly cloudy and a great day to come downtown for the GM River Days festival! Highs will be comfortable, too -- in the mid to upper 70s with a light and variable wind! Don't forget to take some pictures of your family enjoying River Days and pin them on our Storm Pins app map...we'll try to get some of them on the air!

Partly cloudy again on Sunday...another great day for River Days! Highs near 80. Partly cloudy Sunday night, with lows in the mid 60s.

Monday is Ford Fireworks Day, and there are two important weather features I'm keeping an eye on. First, humidity will be on the increase through the day. As you know all too well, when things get warmer and more humid, pop-up thunderstorm chances increase. Second, the weather system that sat stationary to our west during the weekend will start its move east. Showers and storms are likely ahead of this feature.

So, what's going to happen Monday?

Well, I think that the increasing humidity is pretty much a given, so some pop-up showers and storms are possible during the late afternoon / early evening period...but these tend to settle down after sunset...and not everybody gets one. As for the weather system to our west, my gut feeling is that this will hold off until later Monday night into Tuesday. As I've been telling you all week long, the computer models just haven't had a good handle on this situation, so my confidence in the evolving weather pattern is just medium right now.

Stay tuned -- I'll keep you updated on the important Fireworks forecast (follow me on Twitter @PaulGrossLocal4 -- sometimes I only have time to tweet quick updates). And remember that the weather is never a problem if you watch Local 4's EXCLUSIVE coverage! As the proud sponsoring station for the Ford Fireworks, Local 4 is the ONLY place you can watch the entire show LIVE. Highs Monday in the low to mid 80s, with evening temperatures in the 70s.

Showers and thunderstorms become more numerous later Monday night. Lows in the mid to upper 60s.

There’s a good chance for showers and thunderstorms on Tuesday, with highs in the mid 70s. Rain gradually diminishes Tuesday night, with lows in the low 60s.

Any lingering Tuesday night showers should end first thing Wednesday morning, with skies becoming partly cloudy. Highs in the mid 70s.

Partly cloudy both Thursday and Friday, with highs in the upper 70s on Thursday, and in the low-to-mid 80s on Friday.

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